Jeio

제이오 · 418550

Industrials Construction & Engineering · KOSDAQ

Small-cap

Market cap US$152.9M (₩211B)

Overview

Jeio makes carbon nanotubes, ultra-fine carbon-based materials used as conductive additives inside rechargeable batteries to improve electrical performance, and supplies them to major battery makers in Korea and abroad.

The company also provides plant-engineering services, covering process design, project management, and commissioning for industries such as battery materials, electronics, petrochemicals, and environmental processing. Listed on KOSDAQ, Korea's tech-focused small-cap exchange, Jeio operates two distinct business lines: battery-materials production and industrial plant engineering.

Summary is AI-generated and may contain errors · figures from DART filings

Financials

Source: DART · FY ending Dec · latest FY2025

Revenue · FY2025

US$40M

▼ −33.4% YoY

Operating profit · FY2025

−US$3.1M

Loss narrowed

Net income · FY2025

−US$5.4M

Loss narrowed

Revenue, operating profit and net income by fiscal year (USD; KRW in parentheses).
Metric	FY2023	FY2024	FY2025
Revenue	US$83M(₩114.5B)	US$60.1M(₩82.9B)	US$40M(₩55.2B)
Operating profit	US$8.7M(₩12B)	−US$4M(−₩5.5B)	−US$3.1M(−₩4.2B)
Net income	US$12.6M(₩17.4B)	−US$6.4M(−₩8.9B)	−US$5.4M(−₩7.4B)

Revenue

FY2023US$83M
FY2024US$60.1M
FY2025US$40M

Operating profit

FY2023US$8.7M
FY2024−US$4M
FY2025−US$3.1M

Net income

FY2023US$12.6M
FY2024−US$6.4M
FY2025−US$5.4M

Key ratios (FY2025)

ROE

-4.4%

Debt/Eq

21.9%

Op. margin

-7.7%

Net margin

-13.5%

Rev. YoY

▼ −33.4%

Why it matters

Jeio states it was the first company in Korea to achieve mass production of carbon nanotubes and that it developed its own production equipment in-house.

Price charts coming soon

Interactive price history isn't here yet. Would you use it?